centerPanelUi = Ext.extend(Ext.TabPanel, {
	region: 'center'
	,activeTab: 0
    ,defaults: {
        closable: true
    }
    ,initComponent : function()
    {
        this.items = this.contentItems;
        centerPanelUi.superclass.initComponent.call(this);
    }
    ,contentItems: [
        {
            title: 'Start'
            ,id: 'startTab'
            ,html: '<h1>Content goes here...</h1>'
        }
    ]
});
